Re: Vimdiff, version 7.4 on Windows 7

On 12/08/13 20:32, Marcio Gil wrote:
> Em 12/08/2013 12:16, Ben Fritz escreveu:
>> On Monday, August 12, 2013 7:59:03 AM UTC-5, Marcio Gil wrote:
>>> I installed vim 7.4 today. Now the "Diff with vim" option don't work.
>>> E810: Cannot read or write temp files
>>> E97: Cannot create diffs
>>
>> As Tony suggested, check the value you have for 'diffexpr'.
>>
>> I just did a fresh install of Vim 7.4 and did:
>>
>> gvim -N -u NONE -i NONE
>> :source $VIMRUNTIME/vimrc_example.vim
>>
>> This actually leaves 'diffexpr' empty.
>>
>> I was then able to view a diff without seeing any error messages.
>>
>> Vim is also using the correct 'diff.exe' distributed with Vim:
>>
>> :!start cmd
>> C:\Users\btfritz>where diff
>> C:\Program Files (x86)\vim\vim74\diff.exe
>>
>> I guess probably your diffexpr is not correct.
>>
> :set diffexpr?
> diffexpr=MyDiff()
>
> then I put the line:
> echo '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' . arg3 . eq
>
> before this in the _vimrc (copied from vimrc_example.vim):
> silent execute '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' .
> arg3 . eq
>
> :vert diffsp vimrc~
> !""C:\Program Files (x86)\Vim\vim74\diff" -a --binnary
> C:\Users\Marcio\AppData\Local\Temp\VIo4C8B.tmp
> C:\Users\Marcio\AppData\Local\Temp\VIn4C8C.tmp >
> C:\Users\Marcio\AppData\Local\Temp\VId4C8D.tmp"
> E810: Cannot read or write temp files
> E97: Cannot create diffs
>
> I just remove the MyDiff() function from _vimrc then the diff works!
> It is Ok for me, but is there a failure in the Vim instalation?
>

No. Your _vimrc is not part of the Vim installation. If you made an
unwarranted change in your vimrc, and removing that change cures your
problem, well, what can I say? Starting Vim as
vim -u NONE -N
or even as
C:
cd "\Program Files (x86)\vim\vim74"
vim -u .\vimrc_example.vim
ought to work. Making sure that your vimrc is sane is up to you.





Where was that 'diffexpr' set?

:verbose set diffexpr?

There is no MyDiff() in the vimrc_example.vim for Vim 7.4, but there is
one under ":help diff-diffexpr". Are you sure you copied it exactly?
What you typed above doesn't look the same to me as what I see in the
help. Where is the "cmd" variable set? How come you got --binnary with
two n's? This is what _I_ see in the help:

> Example (this does almost the same as 'diffexpr' being empty): >
>
> set diffexpr=MyDiff()
> function MyDiff()
> let opt = ""
> if &diffopt =~ "icase"
> let opt = opt . "-i "
> endif
> if &diffopt =~ "iwhite"
> let opt = opt . "-b "
> endif
> silent execute "!diff -a --binary " . opt . v:fname_in . " " . v:fname_new .
> \ " > " . v:fname_out
> endfunction
>
> The "-a" argument is used to force comparing the files as text, comparing as
> binaries isn't useful. The "--binary" argument makes the files read in binary
> mode, so that a CTRL-Z doesn't end the text on DOS.

Notice v:fname_in, v:fname_out and v:fname_new which aren't the same as
arg1 arg2 arg3.



Best regards,
Tony.
--
I am NOMAD!


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